NAME: 2,4-D

SYNONYM(s): 2,4-Dichlorophenoxyacetic Acid; Hedonal; Trinoxol

IMIS: 0846

CAS: 94-75-7

NIOSH: RTECS AG6825000; 2043

DOT: NA2765 Poison

DESCRIPTION:

Colorless, odorless solid.
MW: 221
BP: Decomposes
VP: approx 0 mm
MP: 284 F

INCOM: Strong oxidizers

OSHA GENERAL INDUSTRY PEL: 10.0 mg/m3

OSHA CONSTRUCTION INDUSTRY PEL: 10 mg/m3 TWA

ACGIH TLV: 10 mg/m3 TWA; Appendix A4 (Not Classifiable as a Human Carcinogen)

NIOSH REL: 10 mg/m3 TWA

IARC: Chlorophenoxy Herbicides - Group 2B, possibly carcinogenic to humans

SYMPTOM(s): Weakness, stupor; hyporeflexia, muscle twitching; convulsions; dermatitis. In animals: liver, kidney damage

HEALTH EFFECTS: Mutagen (HE3); CNS effects (HE7)

ORGAN: Skin, CNS

NIOSH/OSHA/DOE Health Guideline

PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):

MEDIA: Glass Fiber Filter (Gelman Type AE or equivalent)
MAX V: 200 Liters REC F: 3.0 L/min
ANL 1: High Performance Liquid Chromatography; HPLC/UL50.
REF: 1,2 (OSHA modified NIOSH 5001)
SAE: 0.08
CLASS: Fully Validated

COND: Methanol extraction, u Bondapak, C18 column; 55% Methanol 44% water 1% acetic acid; 1.3 mL/min; UV det: 254,280; Retention time, 14 min.

BULK METHOD:

Limit the amount of bulk submitted to one gram or one mL.